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Is split2 ESM-only? Can you require() it?

split a Text Stream into a Line Stream, using Stream 3

Last verified Sep 9, 2026 against split2@4.2.0. Markdown · JSON

CommonJS CommonJS — require() works on every Node.js version we test

split2 ships CommonJS only. require("split2") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 10.x. import "split2" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

What to do

  1. require("split2") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 10.x.
  2. From ES modules use the default import: import split2 from "split2"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/split2
Latest
4.2.0 (Mar 26, 2023)
Module format
CommonJS
Last CommonJS version
4.2.0
TypeScript types
@types/split2
Node engines
>= 10.x
Weekly downloads
77.0M
License
ISC

Does split2@4.2.0 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("split2") from a CommonJS file and import "split2" from an ES module.

Runtimerequire("split2")import "split2"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4.0✓ works✓ works

How to import split2

ES modules (import)

import split2 from "split2";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const split2 = require("split2");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (22 versions; the newest 22 shown).

VersionsFormatFirst published
0.1.0 – 4.2.0CommonJSMar 12, 2014

Frequently asked

Is split2 ESM-only?

split2@4.2.0 is a CommonJS package. split2 ships CommonJS only. require("split2") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 10.x. import "split2" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import split2 with ES module syntax?

Yes. import split2 from "split2" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does split2 work in Bun?

Yes. import "split2" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does split2 ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/split2".

Links

Other commonjs packages

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